Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Increased Body Temperature01:25

Increased Body Temperature

6.5K
A body temperature above  38°C  (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
6.5K
Increased pulse rate01:17

Increased pulse rate

1.1K
Tachycardia is a condition marked by an abnormally fast or irregular heart rate, surpassing the typical resting rate. In adults, tachycardia is characterized by a pulse rate ranging from 100 to 180 beats per minute. The increased heart rate can result in inadequate blood flow to various body parts, ultimately diminishing the oxygen supply to organs and tissues.
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
1.1K
Muscles of the Shoulder01:23

Muscles of the Shoulder

9.1K
The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other muscles to move the humerus effectively. Scapular movements often mirror those of the humerus and extend its range of motion. For instance, raising the arm above the head would not be feasible without simultaneous upward rotation of the scapula.
Anterior Thoracic Muscles
The anterior thoracic muscles include the serratus anterior, subclavius, and...
9.1K
Acid Strength and Molecular Structure03:05

Acid Strength and Molecular Structure

32.9K
Binary Acids and Bases
In the absence of any leveling effect, the acid strength of binary compounds of hydrogen with nonmetals (A) increases as the H-A bond strength decreases down a group in the periodic table. For group 17, the order of increasing acidity is HF < HCl < HBr < HI. Likewise, for group 16, the order of increasing acid strength is H2O < H2S < H2Se < H2Te. Across a row in the periodic table, the acid strength of binary hydrogen compounds increases with increasing...
32.9K
Strength of Cement01:20

Strength of Cement

476
Strength tests for cement are not performed directly on neat cement paste due to difficulty in obtaining consistent, reliable specimens. Instead, cement is typically tested in the form of cement-sand mortar.
For compressive strength tests, ASTM C 109-05 standards prescribe a cement-sand mix ratio of 1:2.75 and a water/cement ratio of 0.485 for making 2-inch cubes. These cubes are mixed, cast, and cured in saturated lime water at 23°C until testing. Flexural strength testing, outlined in...
476
Relation Between Tensile Strength and Compressive Strength of Concrete01:30

Relation Between Tensile Strength and Compressive Strength of Concrete

658
Concrete is a fundamental building material, and understanding its strengths is crucial for construction projects. The relationship between its tensile and compressive strengths is intricate, showing that while these strengths are related, they do not increase at the same rate. Tensile strength's growth is slower and is affected by various factors such as the methods used for testing, the size and shape of the specimen, the texture of the aggregate used, and the moisture content of the...
658

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Surgical Timing and Rehabilitation (STaR) for Multiple Ligament Knee Injuries: Study Protocol for a Multicenter Integrated Clinical Trial.

JB & JS open access·2026
Same author

Coracoid Morphology and the Risk of Posterior Shoulder Instability: A Magnetic Resonance Imaging Study.

The American journal of sports medicine·2026
Same author

Performance of artificial intelligence in addressing questions regarding management of clavicle fractures.

Injury·2026
Same author

The Effects of Tibial Tuberosity-Trochlear Groove Distance on Lateral Translation of the Patella: A Cadaveric Biomechanical Study.

Orthopaedic journal of sports medicine·2026
Same author

Distal Radius Allograft for Posterior Glenoid Bone Loss: A Cadaveric Graft Matching Study and Biomechanical Study.

The American journal of sports medicine·2026
Same author

Time Is of the Essence.

The American journal of sports medicine·2026

Related Experiment Video

Updated: Jan 23, 2026

Reverse Total Shoulder Arthroplasty
10:10

Reverse Total Shoulder Arthroplasty

Published on: July 5, 2011

43.9K

Increased Glenoid Retroversion Is Associated With Increased Rotator Cuff Strength in the Shoulder.

Kenneth L Cameron1, David J Tennent1, Rodney X Sturdivant2

  • 1Department of Orthopedic Surgery, Keller Army Community Hospital, United States Military Academy, West Point, New York, USA.

The American Journal of Sports Medicine
|June 8, 2019
PubMed
Summary
This summary is machine-generated.

Increased glenoid retroversion in young athletes is linked to greater rotator cuff strength. This finding suggests compensatory muscle adaptations may enhance shoulder stability despite bony changes.

Keywords:
glenoid versionrotator cuffshoulder instabilitystrength

More Related Videos

Arthroscopic Management of Massive Irreparable Rotator Cuff Tears: Whole Rotator Cable Reconstruction Using Proximal Biceps Tendon Autograft
07:22

Arthroscopic Management of Massive Irreparable Rotator Cuff Tears: Whole Rotator Cable Reconstruction Using Proximal Biceps Tendon Autograft

Published on: June 6, 2025

590
Development of a Rabbit Chronic-Like Rotator Cuff Injury Model for Study of Fibrosis and Muscular Fatty Degeneration
05:20

Development of a Rabbit Chronic-Like Rotator Cuff Injury Model for Study of Fibrosis and Muscular Fatty Degeneration

Published on: March 31, 2023

1.7K

Related Experiment Videos

Last Updated: Jan 23, 2026

Reverse Total Shoulder Arthroplasty
10:10

Reverse Total Shoulder Arthroplasty

Published on: July 5, 2011

43.9K
Arthroscopic Management of Massive Irreparable Rotator Cuff Tears: Whole Rotator Cable Reconstruction Using Proximal Biceps Tendon Autograft
07:22

Arthroscopic Management of Massive Irreparable Rotator Cuff Tears: Whole Rotator Cable Reconstruction Using Proximal Biceps Tendon Autograft

Published on: June 6, 2025

590
Development of a Rabbit Chronic-Like Rotator Cuff Injury Model for Study of Fibrosis and Muscular Fatty Degeneration
05:20

Development of a Rabbit Chronic-Like Rotator Cuff Injury Model for Study of Fibrosis and Muscular Fatty Degeneration

Published on: March 31, 2023

1.7K

Area of Science:

  • Orthopedics
  • Sports Medicine
  • Biomechanics

Background:

  • Rotator cuff muscles are key secondary stabilizers of the shoulder.
  • Increased glenoid retroversion and rotator cuff strength are linked to posterior shoulder instability risk.
  • The relationship between increased glenoid retroversion and rotator cuff strength is not well understood.

Purpose of the Study:

  • To investigate the association between glenoid version and rotator cuff strength in young, healthy individuals without shoulder instability.
  • To test the hypothesis that increased glenoid retroversion correlates with enhanced rotator cuff muscle strength.

Main Methods:

  • Cross-sectional study (Level of evidence, 3) analyzing baseline data from a prospective cohort.
  • 574 healthy freshmen underwent magnetic resonance imaging for glenoid version measurement.
  • Rotator cuff strength (internal and external rotation) was assessed using a handheld dynamometer in neutral and abducted positions.

Main Results:

  • Mean glenoid version was 7.79° ± 4.85° of retroversion.
  • Increased glenoid retroversion showed a significant association with increased internal and external rotation strength (P < .001).
  • These associations remained significant in multivariable models controlling for confounders.

Conclusions:

  • In young, healthy athletes, greater glenoid retroversion is associated with increased rotator cuff strength.
  • These findings suggest compensatory muscular adaptations may improve dynamic glenohumeral stability in the presence of increased retroversion.